This should be a PSA, avoid Coolmax PSUs at all costs ;
I myself bought one of their unit years ago, it came DOA, and when I tried to bring it back it was refused because the SN on the box (that was recorded for the sale) didn't match the SN of the PSU ... so I decided to open it and I found that traces on the bottom of the circuit board were lifting (that thing was disintegrating from factory !!!).
So avoid at all costs, if it doesn't burn some components, it'll just not work.